Swinging table device and swinging table cage system

Abstract

The application discloses a swing platform device and a swing platform cage system. The swing platform device included in the swing platform cage system comprises a support, a sliding platform installed on the support through a linear motion pair in the front-rear direction of the support, a swing platform installed on the sliding platform through a bearing seat, and a horizontal driving part installed on the support and connected with the sliding platform through a driving end to adjust the position of the swing platform in the front-rear direction. The swing platform device has little influence on the stability of the vehicle entering and leaving the cage.

Description

Technical Field

[0001] This invention relates to a rocking platform device, and further to a rocking platform cage system equipped with the rocking platform device. Background Technology

[0002] The rocker platform conforms to the Chinese Coal Industry Standard MT217-90 "Rocking Platform for Vertical Shaft Cages" (implemented November 1, 1990). The full name of the rocker platform is "Rocking Platform for Vertical Shaft Cages," often shortened to "rocker platform." The rocker platform is a movable platform used to connect the cage to the loading / unloading area, facilitating the smooth replacement of empty and loaded cars inside and outside the cage. When not loading, the rocker arm is forcibly raised by external power. During operation, the rocker arm floats on the cage floor under its own weight to support the load.

[0003] Figure 1 and Figure 2 The diagram shows a known rocker arm structure. The left end is the head end 1, or front end, of the rocker arm, used to mount the rocker tip. The right end is the tail end 4 (also called the rear end), used for assembly with the rocker arm seat via the mounting hole shown in the diagram. The rocker arm seat has a shaft hole fitting with the rocker table shaft. Correspondingly, the rocker table with a pair of rocker arms has a mounting end and a movable end in the front-rear direction. The mounting end is mounted on the frame via the rocker table shaft, giving the rocker table a degree of freedom of rotation. The movable end has a rocker tip, which is used for the connection between the rocker table and the cage.

[0004] Figure 1 and Figure 2 As can be seen, the upper part of the tail end 4 of the rocker arm has a certain curvature. This is because the rocker arm has a degree of freedom of rotation to switch between the overlapping state and the detached state with the cage. The tail end 4 of the rocker arm needs to connect smoothly with, for example, the track in the mine yard. The rocker arm with the degree of freedom of rotation allows the tail end 4 to rotate around the axis of the rocker platform. Therefore, the curvature is required to avoid interference with the track in the mine yard. The length of the rocker arm corresponding to the curvature is generally about 150mm. The center of the curvature falls on the axis of the rocker platform, and the corresponding radius can reach 260mm. In other words, for example, a mine car needs to pass through the curvature to reach the track in the mine yard. This results in a large height difference and impact when the mine car enters and exits the cage, causing the mine car to run unstablely and affecting normal cage entry and exit operations. Summary of the Invention

[0005] The purpose of this invention is to provide a swaying platform device that has a minimal impact on the stability of vehicles entering and exiting the cage. This invention also provides a swaying platform cage system equipped with the swaying platform device.

[0006] According to a first aspect of the present invention, a rocking table device is provided, the basic structure of which includes:

[0007] support;

[0008] The slide is mounted on the bracket via a linear motion pair in the front-to-back direction of the bracket;

[0009] The rocking table is mounted on the slide via a bearing housing; and

[0010] A horizontal drive unit is mounted on the bracket, and the drive end is connected to the slide table to adjust the position of the rocker table in the front-to-back direction.

[0011] Optionally, the rocking platform includes:

[0012] The rocking table shaft is supported on the bearing housing;

[0013] A pair of rocker arms are mounted parallel to each other on the rocker arm shaft.

[0014] The steel rails are installed one-to-one on the upper side of the rocker arm body;

[0015] The rocker tip is installed at the front end of the rocker arm body;

[0016] Among them, the rail is shorter than the rocker arm at the rear end, forming a step that is shorter at the top and longer at the bottom;

[0017] Correspondingly, the parking lot track aligned with the rear end of the rocker arm has a reverse step that is longer at the top and shorter at the bottom.

[0018] Optionally, the rail is 15-20mm shorter than the rocker arm at the rear end.

[0019] Alternatively, the underside of the reverse step has a rearward-sloping clearance space.

[0020] Optionally, the rocker arm and the rail form an I-beam rail component;

[0021] The I-beam rail has reinforcing steel plates on both sides of its waist.

[0022] The fishplate of the I-beam rail has assembly holes at the corresponding positions of the bearing housing for connecting the rocker arm and the rocker table bushing.

[0023] Accordingly, the rocking table bushing is fixedly connected to the rocking table shaft.

[0024] Optionally, a counterweight mounting bracket is also installed on the rocker arm bushing;

[0025] Accordingly, a counterweight is installed on the counterweight mounting frame.

[0026] Optionally, the counterweight includes a counterweight arm that extends in the opposite direction to the rocker arm.

[0027] Optionally, the horizontal drive unit is selected from:

[0028] A hydraulic cylinder, the cylinder body of which is fixed on a bracket, and the push rod of the hydraulic cylinder is connected to the rear end of the slide table;

[0029] A linear motor, the motor mount of which is mounted on a bracket, and the motor shaft of which is connected to the rear end of the slide table; or

[0030] A lead screw mechanism in which the lead screw nut is mounted on the slide, thereby making the slide form a slide plate.

[0031] Optionally, a lifting cylinder with its lower end hinged to the bracket and its upper end hinged to the rocker arm is installed on the bracket portion below the rocker arm.

[0032] The rocker arm is equipped with a support leg on the front side of the hinge position between the rocker arm and the lifting cylinder;

[0033] The support frame is equipped with elastic pads that align with the legs.

[0034] According to a second aspect of the present invention, a swaying table cage system is provided, the swaying table cage system including the swaying table device described in the first aspect of the present invention.

[0035] Traditional rocker arm devices have fixed rocker arm bearing seats. The engagement of the rocker arm with the tank rails and yard rails relies solely on the rotation of the rocker arm. The rear end of the rocker arm's engagement with the yard rails is not tight enough, affecting the stability of vehicle entry and exit. In contrast, the rocker arm device provided in this invention is mounted on a sliding platform. When rotation is required, the rocker arm moves forward and engages with the tank rails inside the cage. Since the rocker arm tip is generally long, and it floats after engaging with the cage, it moves with the cage. Adapting to this technical condition, the rocker arm moves forward and then descends to rest on the cage bottom plate. Then, driven by a horizontal drive unit, the rocker arm retracts backward to form a relatively tight engagement with the yard rails. Based on the floating mechanism, the rocker arm tip on the rocker arm smoothly and tightly engages with the cage. Therefore, without affecting the engagement between the rocker arm and the cage, the connection between the rear end of the rocker arm and the yard rails can be a smooth connection with the track surface, with minimal impact on the stability of vehicles entering and exiting the cage. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a known rocker arm front view structure.

[0037] Figure 2 This is a schematic diagram of a known rocker arm structure from a top view.

[0038] Figure 3 This is a schematic diagram of the rocker arm structure in one embodiment.

[0039] Figure 4 This is a schematic diagram of the left cross-section of the rocker arm in one embodiment.

[0040] Figure 5 This is a schematic diagram of the main structure of the rocking platform device in one embodiment.

[0041] Figure 6 This is a schematic diagram of the left side of the rocking platform device in one embodiment (lifting cylinder omitted).

[0042] Figure 7 This is a top view of the rocking platform device in one embodiment.

[0043] Figure 8 This is a schematic diagram of the main structure of the rocking platform cage device in one embodiment.

[0044] Figure 9 This is a top view of the structure of the rocking platform cage device in one embodiment.

[0045] In the diagram: 1. Head end, 2. Rocking tip pin hole, 3. Assembly hole, 4. Tail end, 5. Reinforcing steel plate, 6. Rail, 7. Fishtail beam, 8. Step, 9. Weld, 10. Lifting cylinder, 11. Flat washer, 12. Pin, 13. Cotter pin, 14. Cotter pin hole, 15. Rocking tip, 16. Hinge pin, 17. Counterweight mounting hole, 18. Bearing housing, 19. Rocking table shaft, 20. Straight-through pressure injection cup, 21. Hex head bolt, 22. Hex nut, 23. Flat washer, 24. Elastic 25. Washer, 26. Counterweight mounting bracket, 27. Rail space, 28. Bushing, 29. Flat key, 30. Detection rod, 31. Flat key, 32. Shaft elastic washer, 33. Handle, 34. Flat key, 35. Bracket, 36. Telescopic cylinder, 37. Rocker arm, 38. Cage, 39. Elastic pad, 40. Screw, 41. Outrigger, 42. Hinge, 43. Hinge, 44. Slide rail, 45. Counterweight, 46. Entering side rail, 47. Entering side rear deck, 48. Entering side front deck. Detailed Implementation

[0046] As mentioned earlier, for the rocking platform device, the side where the cage 37 is located is the front side of the rocking platform device, and conversely, the side where the rocking platform shaft 19 is located is its rear side. Within the track plane, the direction perpendicular to the front and rear is the left-right direction, with left and right corresponding to width and front and rear corresponding to length. Furthermore, it should be understood that the direction perpendicular to the track plane is the height direction.

[0047] It should be noted that in the field of vehicles and rail transportation, the front-to-back direction is also called longitudinal, and the left-to-right direction is also called transverse. For example, the longitudinal beams and transverse beams on a vehicle are named according to this reference system.

[0048] like Figure 8 and Figure 9 The swaying cage system shown has a swaying platform device on each of the inlet and outlet sides of the cage 37, corresponding to the inlet and outlet sides of the cage 37. In some implementations, the cage 37 can also be entered and exited from only one side, in which case only one swaying platform device is required. However, in most applications, a swaying cage system is equipped with a pair of swaying platform devices to facilitate the entry and exit of the vehicle.

[0049] Since the rocking platform devices on the inbound and outbound sides are basically the same in construction, the rocking platform devices are described as a whole in the embodiments of the present invention, without distinguishing whether the rocking platform device is located on the inbound or outbound side of the cage 37.

[0050] like Figure 8 and Figure 9 As shown, the rocking platform device includes a support 34, a rocking platform, a lifting cylinder 10, a telescopic cylinder 35, and a counterweight 44. The support 34 is located at the wellhead or underground work area and is generally a welded structure.

[0051] Figure 8 In the figure, the support 34 is a welded structure of steel sections arranged in the longitudinal and transverse directions and stacked vertically. At the bottom of the figure are a pair of I-beams, which can be fixed in a predetermined position by means of anchor bolts, etc. The I-beams can also be replaced by channel steel beams, H-beams or square tube beams. The figure only shows one configuration of the support 34 as an example. Those skilled in the art can configure it according to the strength and stiffness requirements of the support 34.

[0052] from Figure 8 As can be seen, the bracket 34 has a certain height to obtain installation space for other components, which is common knowledge in this field and will not be elaborated here.

[0053] from Figure 8 As can be seen, bracket 34 is not exclusively part of the swaying platform device; bracket 34 can also provide an installation base for part of the depot track. This part of the depot track can also form part of the swaying platform device to facilitate overall structural adaptation, especially in situations such as... Figure 9 As shown, if the entry side rail 45 is part of the rocker arm device, the relevant design can be completed at the factory. The entry side rail 45 and the rail 6 loaded by the rocker arm 36 have the same design reference, thus having better uniformity and making the fit between the entry side rail 45 and the rail 6 better.

[0054] Unlike traditional rocking table devices, in this embodiment of the invention, a sliding table is mounted on the support 34, such as... Figure 8 As shown, an inverted crossbeam is installed on the underside of the second-to-last beam from the bottom, which is shown as an inverted channel steel in the figure. The second-to-last beam in the figure can be a channel steel beam or an I-beam, which is represented as a longitudinal beam in the figure. The plate on the underside of this longitudinal beam can be used as the mounting base for the aforementioned inverted crossbeam.

[0055] The inverted crossbeam carries a slide rail 43 for guiding the slide table.

[0056] The extension direction of the slide rail 43 is the longitudinal direction of the rocking platform device, which corresponds to the direction of entering and exiting the cage 37. Therefore, the movement direction of the slide platform is the direction of entering and exiting the cage 37, which is the front-to-back direction.

[0057] Correspondingly, the slide table and the slide rail 43 form a linear motion pair in the front and rear direction of the support 34. The slide rail 43 here is similar to the frame guide rail. It is a static guide rail with few load-bearing design factors and its load-bearing requirements are not high.

[0058] Furthermore, the rocker platform is mounted on the slide via bearing housing 18, thus enabling the rocker platform to move in the forward and backward directions. In view of this, since the yard guide rails are fixed, if the rocker platform can move in the forward and backward directions, the problem of interference between the rocker platform and the yard guide rails during rotation can be solved. This eliminates the need for the rear end of the rocker arm to be an arc-shaped structure; instead, the interference problem between the rocker platform and the yard guide rails is resolved through the forward and backward movement of the rocker platform.

[0059] Under these conditions, the tail end of the rocker arm 36, that is, the rear end, can be flush with the track of the depot, and there is no height difference between it and the track surface. That is, the track surface of the rail 6 is flush with the track surface at the bridging end of the depot track. In order to avoid motion interference, a sliding table is adapted.

[0060] It should be noted that the configuration of the sliding table will not change the configuration and final overlap position of the rocker tip 15 and other structures. Therefore, it will not affect the overlap between the front end of the rocker arm 36 and the cage. Furthermore, under these conditions, the problem of rear bridging of the rocker arm 36 has been successfully solved.

[0061] The bridging here refers to the connection between the yard track and the cage via the rocker arm 36, which acts as a bridge. The end of the yard track that is connected to the rocker arm 36 can be the bridging end.

[0062] Accordingly, a horizontal drive unit is provided on the bracket 34. The drive end of the horizontal drive unit is connected to the slide table to adjust the position of the rocker table in the front-back direction. When the rocker table needs to be bridged, the horizontal drive unit pushes the slide table forward, so that the tail of the rocker arm 36 is away from the track of the vehicle yard. The distance away depends on the swing path of the tail when the rocker table swings, and the design basis is clear.

[0063] After the rocker arm moves forward to its designated position, it descends and rests on the cage. Then, the horizontal drive unit pulls the slide back to its original position, allowing the tail end of the rocker arm 36 to align with the yard rails. At this point, the rails 6 on the rocker arm 36 can achieve a relatively tight connection with the yard guide rails. The rocker arm 36 has a certain degree of floating capability, allowing it to smoothly connect to the bridging end of the track inside the cage.

[0064] The reason the rocking platform needs to have the ability to swing is that it needs to clear the path of the cage 37 when it is raised or lowered, and when the cage 37 is in position, the rocker arm 36 on the rocking platform needs to engage with the internal track inside the cage. (Refer to the attached instruction manual.) Figure 8 As shown in the figure, the rocker arm 36 does not need a large turning range to meet the functional requirements of the rocker table. Therefore, the range of movement of the rocker table in the forward and backward directions is not large.

[0065] Furthermore, the rocker tip 15 installed at the end of the rocker arm 36 has a relatively large length, which is sufficient to accommodate the rocker platform within its range of adjustment in the front-to-back direction. Meanwhile, as mentioned earlier, when the rocker tip 15 is initially attached to the cage, it is not required that the rocker tip 15 align with the bridging end of the cage's internal track. After the rocker platform returns to its original position, the rocker tip 15 aligns with the bridging end of the cage's internal track based on, for example, the weight of the rocker arm 36 or external forces.

[0066] The length of the rocker tip 15 is mainly used to accommodate the error in the docking position of the cage 37. The floating of the rocker tip 15 with the rocker arm 36 also accommodates the error in the docking position of the cage 36.

[0067] Consequently, the requirements for the fit between the rail 6 and the yard track, and between the rocker arm 15 and the track inside the tank, are relatively low. It should also be noted that the swinging and lifting of the rocker arm 36 can occur simultaneously, because at the end of the descent of the rocker arm 36, a tight fit between the rocker arm 15 and the track inside the tank is not required. At this point, the rocker platform can be withdrawn sequentially, and finally, the rocker arm 36 continues to descend to engage the rocker arm 15 with the track inside the tank. In other words, the fit between the rocker arm 15 and the track inside the tank can be completely consistent with the traditional fit. The core technical problem this invention aims to solve is the issue of incomplete connection between the rear end of the rocker platform and the yard track.

[0068] It can be seen that the descent stroke of the rocker arm 36 can have multiple stages, thus making the swing of the rocker arm 36 away from the stage where it is most likely to interfere with the yard guide rail.

[0069] Figure 8 In this case, the rocker arm 36 has a rotation range of 25°, which is sufficient to allow the opening cage 37 to rise and fall. Therefore, the clearance space at the rear end of the rocker arm 36 does not need to be too large, which also means that the extension range of the telescopic cylinder 35 does not need to be too large.

[0070] exist Figures 5-7 In the exemplified rocker, the rocker includes a rocker shaft 19 and a pair of rocker arms 36 mounted on the rocker shaft 19, wherein the two ends of the rocker shaft 19 have journals for mounting on bearing seats 18 via bearings, and the bearing seats 18 are mounted on a slide.

[0071] from Figure 7As can be seen, each bearing housing 18 has a pair of bolt holes, which can be used to fix the bearing housing 18 to the slide.

[0072] The bearing housing 18 is a split bearing housing, and a straight-through pressure oil cup 20 is provided on the bearing housing 18 for bearing lubrication.

[0073] As previously described, the rocker shaft 19 has journals at both ends for mounting bearings and is supported on the bearing housing 18.

[0074] The rocker arm shaft 19 is the basic component of the rocker arm assembly. A pair of rocker arms are mounted on the rocker arm shaft 19, and the rocker arms support the steel rails 6, together forming the rocker arms 36. The rocker arms 36 are fixedly connected to the rocker arm shaft 19. The corresponding fixed connections include circumferential connections and axial connections, and the two connection methods work together to achieve a reliable fixed connection.

[0075] Circumferential connections typically use key connections, such as... Figure 6 The connection method shown is achieved by means of bushing 27 and key 28.

[0076] Axial connections are first positioned using, for example, a shoulder, and then limited using, for example, a retaining ring.

[0077] In some embodiments, the rocker arm 36 and the rocker stage shaft 19 are connected by welding.

[0078] Two rocker arms 36 are parallel to each other, and detachable rocker tips 15 are installed at their ends. The installation method can be seen in [the following text is missing]. Figure 3 , Figure 3 In the design, the left end of the rocker arm 36 is its front end, where a rocker tip pin hole 2 is opened. The rocker tip 15 has a corresponding connecting hole, and the rear end of the rocker tip 15 is usually shaped like a fish mouth. The front end of the rocker arm 36 is inserted to align the connecting hole with the rocker tip pin hole 2, and then the pin 12 is inserted. The head of the pin 12 is a flange for limiting, and the tail end has a cotter pin hole 14. After the flat washer 11 is put on, the cotter pin 13 is inserted into the cotter pin hole 14 to complete the installation of the rocker tip 15.

[0079] The rail 6 is preferably an I-beam rail. For ease of description, the upper part of the I-beam rail is referred to as rail 6, and the lower part is referred to by its conventional name, fishplate 7. Rail 6 and fishplate 7 are an integral structure, but other structures can also be used to construct rocker arm 36.

[0080] Correspondingly, rail 6 is located on the upper side of rocker arm 36.

[0081] Figure 3 The right end is the rear end of the rocker arm 36. As can be seen from the figure, the rail 6 is shorter than the rocker arm body at the rear end, forming a step that is shorter at the top and longer at the bottom.

[0082] Correspondingly, the parking lot track aligned with the rear end of the rocker arm has a reverse step that is longer at the top and shorter at the bottom.

[0083] It is evident that the upper surface of the rocker arm at the step is lower than the lower surface of the reverse step, thereby allowing the step and the reverse step to mate to obtain a mating structure with reliable engagement.

[0084] Regarding the size of the steps, they should not be too large, otherwise the steps of the parking lot guide rail will be too long and the rigidity will be reduced. Therefore, in the preferred embodiment, the rail 6 is 15-20mm shorter than the rocker arm at the rear end.

[0085] Furthermore, in order to further reduce the working stroke of the horizontal drive unit, the lower side of the anti-step has a rearward oblique clearance space.

[0086] Figure 4 The figure shows a cross-sectional view of the rocker arm 36. As can be seen from the figure, the rail 6 and the rocker arm body are an integral structure, forming an I-beam rail. The two sides of the I-beam rail are provided with reinforcing steel plates 5 to improve the rigidity and strength of the rocker arm 36.

[0087] The reinforcing steel plate 5 is preferably connected to the I-beam rail by welding.

[0088] Additionally, the fishplate 7 of the I-beam rail has mounting holes at corresponding positions to the bearing housing 18 for connecting the rocker arm 36 to the rocker table bushing; the rocker table bushing is located in... Figure 6 The sleeve is designated as bushing 27 to extend the length of the mating surface of the rocker arm 36 in the axial direction of bushing 27, thereby improving the reliability of the assembly.

[0089] The bushing 27 and the rocker arm body can be connected by welding, or by other means. Figure 5 The hexagonal head bolt 21 shown is used for assembly.

[0090] from Figure 5 and Figure 6 As can be seen, a counterweight mounting bracket 25 is also installed on the bushing 27. In addition, the counterweight mounting bracket 25 can also be directly installed on the rocker arm 19. The counterweight mounting bracket 25 and the rocker arm 36 are installed together on the bushing 27, making the structure more compact.

[0091] It is understandable that the purpose of the counterweight mounting bracket 25 is to introduce the counterweight 44. The torque generated by the counterweight 44 through the counterweight mounting bracket 25 is opposite to the torque generated by the rocker arm 36. The two are configured on the same bushing 27, which makes it less likely to generate additional load, so that the rocker shaft 19 runs more smoothly.

[0092] Furthermore, the counterweight 44 includes a counterweight arm that extends in the opposite direction to the rocker arm 36 to generate an opposite torque, thereby making the driving force required for the lifting cylinder 10 relatively small when driving the rocker arm, in other words, making it relatively easy to drive the rocker arm 36.

[0093] Furthermore, if the torque generated by the rocker arm 36 is slightly larger than the torque generated by the counterweight 44, this slight increase ensures that the rocker arm 36 can reliably rely on its own weight to fit tightly with the track inside the tank. A slightly larger torque also means that manually driving the rocker arm 36 is relatively easy. Figure 6 As can be seen in the structure shown, the right end of the rocker arm 36 is equipped with a handle 32, which can be adjusted manually by the rocker arm 36.

[0094] The handle 32 can also be mounted on the rocker shaft 19 in a hub manner. In some simple applications, the handle 32 can be fixed to the rocker shaft 19 by welding.

[0095] Regarding the selection of the handle 32 and the rocker arm lifting mechanism, they can be configured simultaneously or only one of them can be configured. In the preferred embodiment, both are configured simultaneously, which is because... Figure 8 As shown, the required rotation angle range of rocker arm 36 in actual use is not large. However, during maintenance or repair, rocker arm 36 can be flipped to the rear, i.e., the rotation angle is greater than 90 degrees. In this case, it is more appropriate to adjust it manually.

[0096] Correspondingly, as mentioned above, the rotation range of the rocker arm 36 usually does not need to be too large. A rotation range of 25° is sufficient to meet the requirements of lifting and lowering the cage 37, as well as the overlapping and disengaging of the rocker arm 36.

[0097] Regarding the horizontal drive unit, which is a heavy-duty drive unit, a hydraulic cylinder with a relatively high power density is preferred, such as... Figure 8 The telescopic cylinder 35 shown can also be a linear motor or a lead screw mechanism driven by a rotary motor.

[0098] In contrast, as mentioned earlier, due to the presence of counterweight 44, the rocker arm 36 is relatively easier to drive, thus... Figure 8 The lifting cylinder 10 shown can be replaced with a cylinder with a faster response speed but lower power density.

[0099] However, in some implementations, in order to reduce the bulkiness of the configuration, the pneumatic station is no longer configured when a hydraulic station is configured. Therefore, since the telescopic cylinder 35 needs to be configured as a hydraulic cylinder, the component used for lifting the rocker arm 36 is also configured as a hydraulic cylinder under this condition.

[0100] When the horizontal drive unit is configured as a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixed on the bracket 34, and the push rod of the hydraulic cylinder is connected to the rear end of the slide.

[0101] When the horizontal drive unit is configured as a linear motor, the motor mount of the linear motor is mounted on the bracket 34, and the motor shaft of the linear motor is connected to the rear end of the slide.

[0102] In contrast, the lead screw mechanism requires a drive such as an electric motor. When using an electric motor, an explosion-proof motor should be selected. The electric motor can also be replaced by a hydraulic motor, thus making the power source relatively uniform.

[0103] When the horizontal drive unit adopts a lead screw mechanism, the lead screw nut configured in the lead screw mechanism is installed on the slide, so that the slide constitutes a slide plate.

[0104] To reduce rigid impact, Figure 8 In the structure shown, a support leg 40 is provided at the front of the rocker arm 36. The lower end of the support leg 40 is roughly a disc. A rubber elastic pad 38 is installed on the bracket 34 using, for example, screws 39. So that when the rocker arm 36 is basically in place, the support leg 40 and the elastic pad 38 are combined to absorb vibration and avoid rigid impact.

Claims

1. A rocking table device, characterized in that, include: support; The slide is mounted on the bracket via a linear motion pair in the front-to-back direction of the bracket; The rocking table is mounted on the slide via a bearing housing; as well as A horizontal drive unit is mounted on the bracket, and the drive end is connected to the slide table to adjust the position of the rocker table in the front-back direction; The rocking platform includes: The rocking table shaft is supported on the bearing housing; A pair of rocker arms are mounted parallel to each other on the rocker arm shaft. The steel rails are installed one-to-one on the upper side of the rocker arm body; The rocker tip is installed at the front end of the rocker arm body; Among them, the rail is shorter than the rocker arm at the rear end, forming a step that is shorter at the top and longer at the bottom; Correspondingly, the parking lot track aligned with the rear end of the rocker arm has a reverse step that is longer at the top and shorter at the bottom.

2. The rocking table device according to claim 1, characterized in that, The rail is 15-20mm shorter than the rocker arm at the rear end.

3. The rocking table device according to claim 1 or 2, characterized in that, The underside of the reverse step has a rearward-sloping clearance space.

4. The rocking table device according to claim 1, characterized in that, The rocker arm and the rail together form an I-beam rail component; The I-beam rail has reinforcing steel plates on both sides of its waist. The fishplate of the I-beam rail has assembly holes at the corresponding positions of the bearing housing for connecting the rocker arm and the rocker table bushing. Accordingly, the rocking table bushing is fixedly connected to the rocking table shaft.

5. The rocking table device according to claim 4, characterized in that, A counterweight mounting bracket is also installed on the rocker arm bushing; Accordingly, a counterweight is installed on the counterweight mounting frame.

6. The rocking table device according to claim 5, characterized in that, The counterweight includes a counterweight arm that extends in the opposite direction to the rocker arm.

7. The rocking table device according to claim 1, characterized in that, The horizontal drive unit is selected from: A hydraulic cylinder, the cylinder body of which is fixed on a bracket, and the push rod of the hydraulic cylinder is connected to the rear end of the slide table; A linear motor, the motor mount of which is mounted on a bracket, and the motor shaft of which is connected to the rear end of the slide table; or A lead screw mechanism in which the lead screw nut is mounted on the slide, thereby making the slide form a slide plate.

8. The rocking table device according to claim 1, characterized in that, A lifting cylinder with its lower end hinged to the bracket and its upper end hinged to the rocker arm is installed on the support part below the rocker arm. The rocker arm is equipped with a support leg on the front side of the hinge position between the rocker arm and the lifting cylinder; The support frame is equipped with elastic pads that align with the legs.

9. A swaying platform cage system, characterized in that, Includes the rocking table device as described in any one of claims 1 to 8.

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